【正文】 lation18單向流通風(fēng)unidirectional flow ventilation19通風(fēng)量ventilation rate20換氣次數(shù)air changes。 thermostatic steam trap2 通風(fēng)術(shù)語 一般術(shù)語1通風(fēng)ventilation2工業(yè)通風(fēng)industrial ventilation3自然通風(fēng)natural ventilation4機(jī)械通風(fēng)mechanical ventilation。 pressure reducing valve46安全閥safety valve。 directcontact heat exchanger10蒸汽噴射器steam ejector11膨脹水箱expansion tank12凝結(jié)水箱condensate tank 13開式水箱open tank14閉式水箱closed tank15補(bǔ)給水泵makeup water pump16循環(huán)泵circulating pump17加壓泵booster18凝結(jié)水泵condensate pump19手搖泵hand pump20真空泵vacuum pump21散熱器radiator。 frictional resistance11比摩阻specific frictional resistance12摩擦系數(shù)friction factor13絕對(duì)粗糙度absolute roughness14相對(duì)粗糙度　15局部阻力local resistance16局部阻力系數(shù)coefficient of local resistance17當(dāng)量局部阻力系數(shù)equivalent coefficient of local resistance18折算局部阻力系數(shù)effective coefficient of local resistance19阻力平衡hydraulic resistance balance20壓力損失pressure drop21水力失調(diào)hydraulic disorder22極限流速limiting velocity23經(jīng)濟(jì)流速economic velocity24系統(tǒng)阻力system resistance25作用半徑operating range26資用壓力available pressure27工作壓力working pressure。 blowdown19溢流管overflow pipe20管道配件pipe fittings21管接頭coupling22活接頭union23異徑管接頭reducing coupling24彎頭elbow25三通tee26四通cross27絲堵screwed plug。 trunk pipe9立管riser10支管branch pipe。 hot air heating system8同程式系統(tǒng)reversed return system9異程式系統(tǒng)direct return system10單管采暖系統(tǒng)one(single)pipe heating system11垂直單管采暖系統(tǒng)vertical one(single)pipe heating system12水平單管采暖系統(tǒng)one(single)pipe loop circuit heating system13單管順序式采暖系統(tǒng)one(single)pipe seriesloop heating system14單管跨越式采暖系統(tǒng)one(single)pipe circuit(crossover) heating system15雙管采暖系統(tǒng)twopipe heating system16單雙管混合式采暖系統(tǒng)oneandtwo pipe bined heating system17上分式系統(tǒng)downfeed system18下分式系統(tǒng)upfeed system19中分式系統(tǒng)midfeed system 管道及配件1采暖管道heating pipe line 2熱水管hot water pipe3蒸汽管steam pipe4凝結(jié)水管condensate pipe5干式凝結(jié)水管dry return pipe6濕式凝結(jié)水管wet return pipe7總管main pipe。 coefficient of vapo(u)r permeation23蒸汽滲透阻resistance to water vapor permeability。 overall heat transmission coefficient13傳熱阻resistance of heat transfer14最大傳熱系數(shù)maximum coefficient of heat transfer 15最小傳熱minimum resistance of heat transfer 16經(jīng)濟(jì)傳熱阻economic resistance of heat transfer 17蓄熱系數(shù)coefficient of accumulation of heat。heat conduction coefficient。 district heat supply42熱網(wǎng)heat supply network。 overheat steam31二次蒸汽flash steam32汽水混合物steam water mixture33熱媒參數(shù)heating medium parameter34供水溫度supply water temperature35回水溫度return water temperature36供回水溫度temperature difference between supply and return water37供汽壓力pressure of steam supply38凝結(jié)水背壓力back pressure of steam trap39鍋爐房boiler room。 highpressure hot water heating 10蒸汽采暖steam heating 11高壓蒸汽采暖highpressure steam heating 12低壓蒸汽采暖lowpressure steam heating 13真空采暖vacuum heating 14對(duì)流采暖convection heating 15散熱器采暖radiator heating 16熱風(fēng)采暖warmair heating。暖通專業(yè)常用術(shù)語中英文對(duì)照1 采暖術(shù)語 一般術(shù)語1采暖heating。 hot air heating 17集中送風(fēng)采暖localized air supply for airheating 18輻射采暖panel heating。 boiler house。 heat distributing network43熱力入口building heating entry44開式回水open return45閉式回水closed return46余壓回水back pressure return47閉式滿管回水dosed full flow return 圍護(hù)結(jié)構(gòu)與熱負(fù)荷1圍護(hù)結(jié)構(gòu)building envelope2空氣間層air space。 heat conductivity8導(dǎo)溫系數(shù)thermal diffusivity9熱阻thermal resistance。 coefficient of thermal storage18熱惰性指標(biāo)（D值）index of thermal inertia(value D)19熱穩(wěn)定性thermal stability。 resistance to water vapor permeation24耗熱量heat loss25基本耗熱量basic heat loss26附加耗熱量additional heat loss27圍護(hù)結(jié)構(gòu)溫差修正系數(shù)temperature difference correction factor of envelope 28溫度梯度temperature gradient29朝向修正率correction factor for orientation30風(fēng)力附加率additional factor for wind force31外門附加率additional factor for exterior door32高度附加率additional factor for room height33間歇附加率additional factor for intermittent heating34冷風(fēng)滲透耗熱量heat loss by infiltration。 main。 branch 11散熱器供熱支管feeding branch of radiator 12散熱器回水支管return branch of radiator13排氣管vent。 plug28補(bǔ)心bushing29長(zhǎng)絲close nipple。 operating pressure28靜壓static pressure29動(dòng)壓velocity pressure30全壓total pressure 采暖設(shè)備及附件1采暖設(shè)備heating equipment。 heat emitter22對(duì)流散熱器convector23鑄鐵散熱器cast iron radiator24鋼制散熱器steel radiator25光面管散熱器pipecoil。 pressure relief valve47止回閥check valve。 forced ventilation5聯(lián)合通風(fēng)natural and mechanical bined ventilation6全面通風(fēng)general ventilation。 ventilating rate21進(jìn)風(fēng)量supply air rate22排風(fēng)量exhaust air rate23風(fēng)量平衡air balance24熱平衡heat balance25余熱excess heat。 controlled natural ventilation 2無組織自然通風(fēng)unorganized natural ventilation。 thermal buoyancy。 neutral zone。 down draft23熱車間hot workshop。 watercooled absorptive shielding28通風(fēng)屋頂ventilated roof29降溫cooling30降溫系統(tǒng)cooling system31地道風(fēng)air through tunnel 機(jī)械通風(fēng)1機(jī)械通風(fēng)系統(tǒng)mechanical ventilating system2機(jī)械送風(fēng)系統(tǒng)mechanical air supply system3機(jī)械排風(fēng)系統(tǒng)mechanical exhaust system4局部送風(fēng)系統(tǒng)local air supply system。 shutter15保溫窗heat insulating window16[空氣加熱器]旁通閥bypass damper17局部排風(fēng)罩exhaust hood。 fume hood25傘形罩ganopy hood26側(cè)吸罩lateral hood。 control velocity 除塵1粉塵dust2纖維性粉塵fibrous dust3親水性粉塵hydrophilic dust。 particulates。 angle of rest17滑動(dòng)角angle of slide18真密度actual density。 specific resistance21可濕性wettability22水硬性hydraulicity23塵源dust source24塵化作用pulvation action25二次揚(yáng)塵reentrainment of dust26沉降速度settling velocity27懸浮速度suspended velocity28除塵dust removal。 wet dust